نتایج جستجو برای: silver sulfodiazine

تعداد نتایج: 45561  

2017
Hamidreza Tavakoli Hossein Rastegar Mahdi Taherian Mohammad Samadi Hossein Rostami

Nano packaging is currently one of the most important topics in food packaging technologies. The aim of the application of this technology in food packaging is increasing shelf life of foods by preventing internal and external corruption and microbial contaminations. Use of silver nanoparticles in food packaging has recently attracted much attention. The aim of this study was to investigate the...

1999
NICOLAS R. BURY CHRIS M. WOOD

Bury, Nicolas R., and Chris M. Wood. Mechanism of branchial apical silver uptake by rainbow trout is via the proton-coupled Na1 channel. Am. J. Physiol. 277 (Regulatory Integrative Comp. Physiol. 46): R1385–R1391, 1999.—The branchial uptake mechanism of the nonessential heavy metal silver from very dilute media by the gills of freshwater rainbow trout was investigated. At concentrations .36 nM ...

2016

White (2015) suggests that in conjunction with appropriate compression therapy, when a venous leg ulcer (VLU) is infected, there are four main criteria that a dressing will need to meet. It has to: Provide sustained broad spectrum antibacterial action Be efficacious against biofilm Be efficacious in the presence of exudate Be safe. Along with other topical antimicrobial agents, dressings that c...

2017
Pawel Uznanski Joanna Zakrzewska Frederic Favier Slawomir Kazmierski Ewa Bryszewska

A comparative study of amine and silver carboxylate adducts [R1COOAg-2(R2NH2)] (R1 = 1, 7, 11; R2 = 8, 12) as a key intermediate in NPs synthesis is carried out via differential scanning calorimetry, solid-state FT-infrared spectroscopy, 13C CP MAS NMR, powder X-ray diffraction and X-ray photoelectron spectroscopy, and various solution NMR spectroscopies (1H and 13C NMR, pulsed field gradient s...

Bahram Keyvani, Mohammad Saeed Azarkhalil

Silver metal was recovered primarily from spent X-ray photographic solution using a horizontal tube furnace. The X-Ray Diffraction (XRD) spectroscopy analysis approved almost 95 percent purity of the recovered silver metal. In the next step, the synthesis of silver nanoparticles from the recovered silver metal proceeded by using chemical reduction method. The proposed method uses e...

2012
Hui-Jun Li An-Qi Zhang Yang Hu Li Sui Dong-Jin Qian Meng Chen

Tween 80 (polysorbate 80) has been used as a reducing agent and protecting agent to prepare stable water-soluble silver nanoparticles on a large scale through a one-pot process, which is simple and environmentally friendly. Silver ions can accelerate the oxidation of Tween 80 and then get reduced in the reaction process. The well-ordered arrays such as ribbon-like silver nanostructures could be...

Journal: :The journal of physical chemistry. B 2003
Alexandr Parfenov Ignacy Gryczynski Joanna Malicka Chris D Geddes Joseph R Lakowicz

Recent reports have shown enhanced fluorescence for fluorophores in close proximity to chemically deposited silver islands or colloids. To expand the usefulness of metal-enhanced fluorescence we tested fractal silver structures formed on, or near, silver electrodes by passage of electric currents. The emission intensity of fluorescein-labeled human serum albumin (FITC-HSA) was enhanced over 100...

ژورنال: بوم شناسی آبزیان 2016

Effects of different concentrations of silver nanoparticles and silver nitrate on some hematological indices of Zayanderud Chub (Petroleuciscus esfahani) were investigated. One hundred individuals of the fish (average weight 26.4 ± 1.3 g) were divided into 5 experimental groups, exposed to 1 or 25 µg/L of silver nano or silver nitrate or unpolluted water as control for 10 days. At the end, prim...

Background: Today, the synthesis of silver nanoparticles is very common due to their many applications in various fields. The synthesis of these nanoparticles is done by means of physical, chemical, or biological methods. However, due to its inexpensive and environmentally friendly features, the biological method is more preferable than the other two methods. Previous research has shown that ni...

Journal: :international journal of aquatic biology 0
hamid reza esmaeili department of biology, college of sciences, shiraz university, shiraz, iran. mohinder singh johal department of zoology, panjab university, chandigarh, 160014, india.

investigation on the food and feeding habits of silver carp in gobindsgar reservoir indicated that the diet of silver carp was dominated by cyclotella spp. (diatom) followed by chlorophyceae, cyanophyceae, crustacea, dianophyceae and rotifera. the size range of cyclotella spp. varied between 5-25 µm indicating that silver carp is capable to collect the food particles smaller than distance betwe...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید